Last visit was: 20 Jun 2024, 23:51 It is currently 20 Jun 2024, 23:51
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
SORT BY:
Date
Tags:
Show Tags
Hide Tags
Math Expert
Joined: 02 Sep 2009
Posts: 93896
Own Kudos [?]: 633509 [1]
Given Kudos: 82388
Send PM
GMAT Club Legend
GMAT Club Legend
Joined: 08 Jul 2010
Status:GMAT/GRE Tutor l Admission Consultant l On-Demand Course creator
Posts: 6016
Own Kudos [?]: 13649 [0]
Given Kudos: 125
Location: India
GMAT: QUANT+DI EXPERT
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
WE:Education (Education)
Send PM
Current Student
Joined: 25 Aug 2019
Posts: 4
Own Kudos [?]: 7 [1]
Given Kudos: 23
Location: United States (NY)
GMAT 1: 660 Q47 V34
GMAT 2: 720 Q49 V39 (Online)
GPA: 3.4
Send PM
Senior Moderator - Masters Forum
Joined: 19 Jan 2020
Posts: 3127
Own Kudos [?]: 2800 [0]
Given Kudos: 1511
Location: India
GPA: 4
WE:Analyst (Internet and New Media)
Send PM
Re: If 2x + y = 7, what is the value of x ? (1) y = 3 (2) 3x + y = 9 [#permalink]
Each statement is sufficient alone.
Statement 1: if we put y=3 in eq it will give X=2
Also, Statement 2: if w equate both equations. We will get X=2.
So either of the statement is sufficient.Giving OA as D.

Posted from my mobile device
GMAT Club Legend
GMAT Club Legend
Joined: 12 Sep 2015
Posts: 6806
Own Kudos [?]: 30599 [1]
Given Kudos: 799
Location: Canada
Send PM
Re: If 2x + y = 7, what is the value of x ? (1) y = 3 (2) 3x + y = 9 [#permalink]
1
Kudos
Expert Reply
Top Contributor
Bunuel wrote:
If 2x + y = 7, what is the value of x ?

(1) y = 3
(2) 3x + y = 9


Given: 2x + y = 7

Target question: What is the value of x ?

Statement 1: y = 3
Substitute into the given equation to get: 2x + (3) = 7
Solve to get x = 2
Since we can answer the target question with certainty, statement 1 is SUFFICIENT

Statement 2: 3x + y = 9
We can rewrite this equation as follows: x + (2x + y) = 9
Since the given information tells us that 2x + y = 7, we can take x + (2x + y) = 9 and substitute to get: x + 7 = 9
Solve to get x = 2
Since we can answer the target question with certainty, statement 2 is SUFFICIENT

Answer: D

Cheers,
Brent
GMAT Club Bot
Re: If 2x + y = 7, what is the value of x ? (1) y = 3 (2) 3x + y = 9 [#permalink]
Moderator:
Math Expert
93896 posts